diff options
Diffstat (limited to 'doc/doc-txt/experimental-spec.txt')
| -rw-r--r-- | doc/doc-txt/experimental-spec.txt | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt index e7a0d0668..2d34de0f7 100644 --- a/doc/doc-txt/experimental-spec.txt +++ b/doc/doc-txt/experimental-spec.txt @@ -759,11 +759,12 @@ b. Configure, somewhere before the DATA ACL, the control option to -Transport post-delivery actions +Event Actions -------------------------------------------------------------- -An arbitrary per-transport string can be expanded upon various transport events -and (for SMTP transports) a second string on deferrals caused by a host error. +(Renamed from TPDA, Transport post-delivery actions) + +An arbitrary per-transport string can be expanded upon various transport events. Additionally a main-section configuration option can be expanded on some per-message events. This feature may be used, for example, to write exim internal log information @@ -771,33 +772,33 @@ This feature may be used, for example, to write exim internal log information In order to use the feature, you must compile with -EXPERIMENTAL_TPDA=yes +EXPERIMENTAL_EVENT=yes in your Local/Makefile and define one or both of -- the tpda_event_action option in the transport -- the delivery_event_action +- the event_action option in the transport +- the event_action main option to be expanded when the event fires. -A new variable, $tpda_event, is set to the event type when the +A new variable, $event_name, is set to the event type when the expansion is done. The current list of events is: - msg:complete main per message - msg:delivery transport per recipient - msg:host:defer transport per attempt - msg:fail:delivery main per recipient - msg:fail:internal main per recipient - tcp:connect transport per connection - tcp:close transport per connection - tls:cert transport per certificate in verification chain - smtp:connect transport per connection - -The expansion is called for all event types, and should use the $tpda_event + msg:complete after main per message + msg:delivery after transport per recipient + msg:host:defer after transport per attempt + msg:fail:delivery after main per recipient + msg:fail:internal after main per recipient + tcp:connect before transport per connection + tcp:close after transport per connection + tls:cert before transport per certificate in verification chain + smtp:connect after transport per connection + +The expansion is called for all event types, and should use the $event_name value to decide when to act. The variable data is a colon-separated list, describing an event tree. -There is an auxilary variable, $tpda_data, for which the +There is an auxilary variable, $event_data, for which the content is event_dependent: msg:delivery smtp confirmation mssage @@ -805,7 +806,7 @@ content is event_dependent: tls:cert verification chain depth smtp:connect smtp banner -The msg:host:defer event populates one extra variable, $tpda_defer_errno. +The msg:host:defer event populates one extra variable, $event_defer_errno. The following variables are likely to be useful depending on the event type: @@ -820,7 +821,7 @@ The following variables are likely to be useful depending on the event type: An example might look like: -tpda_event_action = ${if = {msg:delivery}{$tpda_event} \ +event_action = ${if = {msg:delivery}{$event_name} \ {${lookup pgsql {SELECT * FROM record_Delivery( \ '${quote_pgsql:$sender_address_domain}',\ '${quote_pgsql:${lc:$sender_address_local_part}}', \ @@ -831,12 +832,12 @@ tpda_event_action = ${if = {msg:delivery}{$tpda_event} \ '${quote_pgsql:$message_exim_id}')}} \ } {}} -The string is expanded for each of the supported events and any -side-effects will happen. The result is then discarded. +The string is expanded when each of the supported events occur +and any side-effects of the expansion will happen. Note that for complex operations an ACL expansion can be used. -The expansion of the tpda_event_action option should normally +The expansion of the event_action option should normally return an empty string. Should it return anything else the following will be forced: @@ -848,6 +849,7 @@ following will be forced: tls:cert refuse verification smtp:connect close connection +No other use is made of the result string. |